The U.S. aircraft register, updated daily
Deregistered · FAA record as of October 2, 2026
N7666D

N7666D is not currently registered. It was last assigned to a Piper PA-18-150 built in 1957. The FAA cancelled the registration on May 21, 2015. The last status on file was "registration expired, pending cancellation".

Piper PA-18-150 cancelled May 21, 2015

Serial number
18-5935
Type
Fixed-wing, single engine · Piston (reciprocating)
Year built
1957
Last status
Registration expired, pending cancellation
Certificate issued
January 19, 2007
Last FAA action
January 19, 2010
Last owner
Cyrus Chad H DBA (Individual)
Miles City, MT
Airworthiness
Multiple · Standard; Restricted; Other

NTSB accident and incident record under N7666D

WPR11FA390Accident on August 18, 2011 at Forsyth, MT: fatal, substantial damage (2 fatal).

Aircraft on the NTSB record: Piper PA-18-150 · serial 18-5935

The pilot’s failure to maintain adequate airspeed while maneuvering, which resulted in a stall/mush, loss of control, and impact with terrain.

A tail number passes between aircraft over the years; match the serial number on the NTSB record against the airframe above. Source: NTSB aviation accident database, records through September 30, 2026.

Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this number on the FAA site